| Bcsi Solutions Ltd | Professional & scientific | 2013 |
| BCW Painting and Decorating Ltd | Construction | 2022 |
| BD Minted Limited | Wholesale & retail | 2025 |
| BD Specialist Urological Services Ltd | Health & social care | 2021 |
| BDC Moore Ltd | Professional & scientific | 2018 |
| Bdma Holdings Ltd | Financial services | 2017 |
| BE Admin Free Ltd | Administrative & support | 2011 |
| BE Beautiful & Shine Limited | Other services | 2020 |
| BE Beautiful (1) Ltd | Other services | 2005 |
| BE Beautiful Holdings Ltd | Financial services | 2022 |
| Be-Seated Ltd | Other services | 2025 |
| BEA Forshaw Limited | Hospitality | 2012 |
| BEA Mine Limited | Other services | 2024 |
| Beach Grove Properties Ltd | Real estate | 2007 |
| Beacon Equities Limited | Real estate | 2023 |
| Beacon People Limited | Professional & scientific | 2025 |
| Beacon View Properties Limited | Construction | 1989 |
| Beaconsfield Terrace Limited | Professional & scientific | 2017 |
| Beak Street Nominees Ltd | Extraterritorial | 2007 |
| Beam Entertainment Limited | Arts & recreation | 2019 |
| Beanstalk Skills Academy CIC | Administrative & support | 2021 |
| Beardsmore Associates Limited | Professional & scientific | 2002 |
| Beardsworth Developments Limited | Construction | 2003 |
| Beargrid Ltd | Information & communication | 2020 |
| Bearstone Ltd | Construction | 2025 |
| Beato Holdings Ltd | Agriculture & fishing | 2015 |
| Beaudon Group Limited | Financial services | 2026 |
| Beaudon Holdings Limited | Financial services | 2026 |
| Beaufort Estates Group Limited | Financial services | 2025 |
| Beaufort Estates Lytham Limited | Real estate | 2025 |
| Beaufort&Co Limited | Construction | 2019 |
| Beaumont Childcare Services Ltd | Health & social care | 2008 |
| Beaumont Partnership (North West) Ltd | Professional & scientific | 2014 |
| Beaurud Publishing Ltd | Information & communication | 2025 |
| Beautiluxe Aesthetics Clinic Ltd | Health & social care | 2018 |
| Beautisync Ltd | Information & communication | 2026 |
| Beauty and Aesthetic System Ltd | Other services | 2025 |
| Beauty and Wellbeing Club Limited | Wholesale & retail | 2023 |
| Beauty Like Always Ltd | Other services | 2023 |
| Beauty With INK Limited | Other services | 2024 |
| Beauty, Aesthetics, Laser by Natalie Wood Ltd | Other services | 2025 |
| Beautyful Like Never Ltd | Other services | 2023 |
| BEC Mailing Ltd | Transport & logistics | 2026 |
| Beck Design and Build Ltd | Construction | 2021 |
| Beck-Ai Ltd | Information & communication | 2025 |
| Becketts Forge Management Company Limited | Real estate | 1995 |
| Beckles Machinery Limited | Wholesale & retail | 2024 |
| Bedam Leisure Ltd | Wholesale & retail | 2025 |
| Bedding Buys Limited | Wholesale & retail | 2021 |
| Beddow Financial Services Ltd | Financial services | 2025 |
| Bedeque Limited | Professional & scientific | 2021 |
| Bedford Operations Ltd | Information & communication | 2023 |
| Bedzzz Ltd | Hospitality | 2018 |
| BEE Fold Property Solutions Ltd | Real estate | 2019 |
| BEE Mill Studios Ltd | Extraterritorial | 2020 |
| BEE Trails CIC | Arts & recreation | 2020 |
| BEE2B Cleaning Limited | Administrative & support | 2026 |
| Beech Court Management (Leyland) Limited | Households | 2004 |
| Beech Forklifts Ltd | Wholesale & retail | 2011 |
| Beech Grove Accomodation Limited | Real estate | 2022 |
| Beech Grove Ltd | Real estate | 2017 |
| Beeches Medical (Holdings) Limited | Financial services | 2017 |
| Beechnut Solutions Ltd | Professional & scientific | 2026 |
| Beechwood Gardens Management Company Limited | Households | 2020 |
| Beecroft Shows Limited | Wholesale & retail | 2011 |
| Beemin Ltd | Wholesale & retail | 2019 |
| Beer WE Go Limited | Professional & scientific | 2024 |
| Beeston Manor Limited | Hospitality | 2006 |
| Beetroot Red Ltd | Hospitality | 2020 |
| Begc Developments & Maintenance Ltd | Construction | 2018 |
| Begley Engineering Services Limited | Professional & scientific | 2003 |
| Being Real Workplace Mental Health Solutions Limited | Professional & scientific | 2022 |
| Belair (U.K.) Limited | Information & communication | 1987 |
| Belcanto MS Properties Ltd | Real estate | 2025 |
| Belfiore Management Limited | Extraterritorial | 2006 |
| Belgian Blue Limited | Real estate | 2023 |
| Belgrave & Powell Ltd | Professional & scientific | 2017 |
| Believe Care and Support Ltd | Health & social care | 2021 |
| Bell & Connor Ltd | Financial services | 2017 |
| Bell Distribution Ltd | Wholesale & retail | 2012 |
| Bell Fire Management Limited | Professional & scientific | 2025 |
| Bell Fold Ltd | Agriculture & fishing | 2022 |
| Bell House Collective Ltd | Wholesale & retail | 2026 |
| Bell Lancaster Ltd | Construction | 2014 |
| Bella Care Services Ltd | Health & social care | 2024 |
| Bella Homes NW Limited | Construction | 2016 |
| Bella Italia Ltd | Hospitality | 2019 |
| Bellatrixx Beauty Ltd | Other services | 2022 |
| Bellcorp Group Limited | Education | 2013 |
| Bellcorp Holdings Ltd | Real estate | 2018 |
| Belle Beauty and Holistics Limited | Extraterritorial | 2021 |
| Bellevue Contracting Limited | Extraterritorial | 2021 |
| Bellissima Aesthetic Ltd | Other services | 2025 |
| Belmont Garage & Sons Ltd. | Wholesale & retail | 2014 |
| Belmont Recruitment Limited | Administrative & support | 2016 |
| Belmont Recruitment Two Limited | Administrative & support | 2022 |
| Belmonte Investments Limited | Professional & scientific | 2006 |
| Belmonte Management Limited | Extraterritorial | 2006 |
| Belsito Management Limited | Professional & scientific | 2006 |
| Beltov 1 Limited | Real estate | 2023 |